task-017-pods

• To get the number of pods

$ kubectl get pods
No resources found in default namespace.

• To create pod with nginx imgae

$ kubectl run nginx --image=nginx
pod/nginx created

• To check what image is used to create the pod

$ kubectl describe pod nginx | grep -i image
    Image:          nginx

• Which nodes are these pods based on

$ kubectl get pods -o wide                  
NAME    READY   STATUS    RESTARTS   AGE     IP           NODE             NOMINATED NODE   READINESS GATES
nginx   1/1     Running   0          2m27s   10.1.4.225   docker-desktop   <none>           <none>

• How many containers are running

1/1 Running containers/Total Containers

• What is the state of the container running

$ kubectl describe pod nginx | grep -i state
    State:          Running

• Can you get the event section output of the pod

$ kubectl describe pod nginx | tail -n 8 
Events:
  Type    Reason     Age    From               Message
  ----    ------     ----   ----               -------
  Normal  Scheduled  5m37s  default-scheduler  Successfully assigned default/nginx to docker-desktop
  Normal  Pulling    5m36s  kubelet            Pulling image "nginx"
  Normal  Pulled     5m21s  kubelet            Successfully pulled image "nginx"
  Normal  Created    5m21s  kubelet            Created container nginx
  Normal  Started    5m21s  kubelet            Started container nginx

• Can you delete the pod nginx

$ kubectl delete pod nginx              
pod "nginx" deleted

• Create a redis pod using redis image by using command line, also generate the corresponding yaml file. Do a dry run first to create the yaml and then use the yaml to create the pod.

$ kubectl run redis --image=redis --dry-run=client -o yaml > redis.yml
$ kubectl create -f redis.yml 
pod/redis created